# Release Summary

### asterisk-16.19.1

### Date: 2021-07-22

### <asteriskteam@digium.com>

## Table of Contents

1. Summary
2. Contributors
3. Closed Issues
4. Diffstat

## Summary

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This release has been made to address one or more security vulnerabilities that have been identified. A security advisory document has been published for each vulnerability that includes additional information. Users of versions of Asterisk that are affected are strongly encouraged to review the advisories and determine what action they should take to protect their systems from these issues.

Security Advisories:

- AST-2021-007,AST-2021-008,AST-2021-009

The data in this summary reflects changes that have been made since the previous release, asterisk-16.19.0.

## Contributors

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This table lists the people who have submitted code, those that have tested patches, as well as those that reported issues on the issue tracker that were resolved in this release. For coders, the number is how many of their patches (of any size) were committed into this release. For testers, the number is the number of times their name was listed as assisting with testing a patch. Finally, for reporters, the number is the number of issues that they reported that were affected by commits that went into this release.

Coders | Testers | Reporters
--- | --- | ---
2 Kevin Harwell 1 Joshua C. Colp |  | 1 Michael Welk 1 Ivan Poddubny 1 Andrew Yager

## Closed Issues

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This is a list of all issues from the issue tracker that were closed by changes that went into this release.

### Security

#### Category: Channels/chan_pjsip

ASTERISK-29415: Crash in PJSIP TLS transport
Reported by: Andrew Yager

- [734e42155f] Kevin Harwell -- AST-2021-009 - pjproject-bundled: Avoid crash during handshake for TLS

#### Category: Resources/res_pjsip_session

ASTERISK-29381: chan_pjsip: Remote denial of service by an authenticated user
Reported by: Ivan Poddubny

- [56fa10941a] Joshua C. Colp -- AST-2021-007 - res_pjsip_session: Don't offer if no channel exists.

### Bug

#### Category: Channels/chan_iax2

ASTERISK-29392: chan_iax2: Asterisk crashes when queueing video with format
Reported by: Michael Welk

- [7603e683cb] Kevin Harwell -- AST-2021-008 - chan_iax2: remote crash on unsupported media format

## Diffstat Results

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This is a summary of the changes to the source code that went into this release that was generated using the diffstat utility.

    channels/chan_iax2.c                                                   |   40 +-
    res/res_pjsip_session.c                                                |   10
    third-party/pjproject/patches/0110-tls-parent-listener-destroyed.patch |  166 ++++++++++
    third-party/pjproject/patches/0111-ssl-premature-destroy.patch         |  136 ++++++++
    4 files changed, 343 insertions(+), 9 deletions(-)